Error has made man so deep, sensitive, and inventive that he has put forth such blossoms as religions and arts. Pure knowledge could not have been capable of it.

Gradually it has become clear to me what every great philosophy so far has been: namely, the personal confession of its author and a kind of involuntary and unconscious memoir.

Thoughts are the shadows of our feelings - always darker, emptier and simpler.

Whoever fights monsters should see to it that in the process he does not become a monster. And if you gaze long enough into an abyss, the abyss will gaze back into you.

But like infection is the petty thought: it creeps and hides, and wants to be nowhere--until the whole body is decayed and withered by the petty infection... Thus spoke Zarathustra.

People live for the morrow, because the day-after-to-morrow is doubtful.

We, however, want to become those we are--human beings who are new, unique, incomparable, who give themselves laws, who create themselves. To that end we must become the best learners and discoverers of everything that is lawful and necessary in the world: we must become physicists in order to be able to be creators in this sense--while hitherto all valuations and ideals have been based on ignorance of physics or were constructed so as to contradict it. Therefore: long live physics! And even more so that which compels us to turn to physics--our honesty!